DEV
Set to 4 different clues across 4 published puzzles, most often “Partner of research: Abbr.” — The New York Times, Sunday, 26 April 2009.
3 letters
Every clue on record, most used first
- Partner of research: Abbr.once
The New York Times — Sunday, 26 April 2009
- Part of R&D: Abbr.once
The New York Times — Sunday, 14 December 2008
- The "D" in R&D: Abbr.once
The New York Times — Wednesday, 1 October 2008
- Part of R & D: Abbr.once
The New York Times — Friday, 27 June 2003